<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        
    </style>
</head>
<body>
    <div class="box">
        hello world
        <h3>自定义的数据绑定</h3>
        <span>{{ msg }}</span>
        <span>{{ msg }}</span>
        <span>{{ msg }}</span>
    </div>
</body>
<script src="./myvue.js"></script>
<script>

    const vm = new myVue();
    vm.msg = 123123;
    


    // obj.msg;

    // obj.msg = 123123;

    // obj.msg = "哈哈哈";


    // console.log(obj.msg);
    
    // obj.msg = 123;
    
    // console.log(obj.msg);
    
</script>
</html>